Google street view image for 280 Cognewaugh Rd, Cos Cob, CT 06807

Off market sep 1992 for $905K

$3,238,114

Est. refi paymentEst. refi $5,503/mo

•

4.5 ba

•

4,018

sq ft

280 Cognewaugh Rd, Cos Cob, CT 06807

About this home

280 Cognewaugh Rd is a 4,018 square foot house on a 2 acre lot with 4 bedrooms and 4.5 bathrooms. - it last sold on September 02, 1992 for $905,000. Based on Redfin's Cos Cob data, we estimate the home's value is $3,238,114.

Single-familyProperty Type

1981Year Built

2 acresLot Size

$806Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$3,238,114

$2.3M since sold in September 1992$3,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 11.5% higher than the average sale price ($2.90M) of 5 comparable homes.

SOLD JUN 1, 2026
$3,800,000
A
4 beds4.5 baths4,096 sq ft
41 Stone Brook Ln, Cos Cob, CT 06807
SOLD MAY 21, 2026
$3,000,000
B
4 beds4.5 baths3,734 sq ft
29 Old Stone Bridge Rd, Cos Cob, CT 06807
SOLD MAY 15, 2026
$2,550,000
C
4 beds4.5 baths4,161 sq ft
150 N Old Stone Bridge Rd, Cos Cob, CT 06807
SOLD SEP 15, 2026
$2,675,000
D
4 beds4 baths4,851 sq ft
3 Carriage Rd, Cos Cob, CT 06807
SOLD SEP 21, 2026
$2,499,000
E
4 beds2.5 baths3,852 sq ft
10 Steep Hollow Ln, Cos Cob, CT 06807

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Earn from this home

Sell

$3,050,162

Est. take-home

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Refinance

Est. cash available

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Rent

$4,443/mo

Redfin rental estimate

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Market trends in 06807, CT

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

105.6%

0.4% MoM

Median sale price

$1.9M

$87K MoM

Avg. days on market

19d

4 days MoM

Recently sold homes

2 MoM

New listings for sale

$3,750,000
5 beds4.5 baths4,000 sq ft
17 Salem St, Cos Cob, CT 06807
3D WALKTHROUGH
$785,000
2 beds2 baths1,287 sq ft
98 Valley Rd #10, Cos Cob, CT 06807
$2,950,000
3 beds3.5 baths2,712 sq ft
19 Daffodil Ln, Cos Cob, CT 06807
See all

Provided by Redfin

Sale history for 280 Cognewaugh Rd

Year

Property tax

Land + Additions

Assessment*

2023

$14,425 (+1.0%)

$616,000 + $650,440

$1,266,440

2022

$14,285 (−4.4%)

$616,000 + $650,440

$1,266,440

2021

$14,936

$560,000 + $728,700

$1,288,700

2020

$14,936 (+0.2%)

$560,000 + $728,700

$1,288,700

2019

$14,902 (+2.7%)

$560,000 + $715,820

$1,275,820

2018

$14,506

$560,000 + $715,820

$1,275,820

2017

$14,506 (+1.5%)

$560,000 + $715,820

$1,275,820

2016

$14,289 (+3.6%)

$560,000 + $715,820

$1,275,820

2014

$13,789

$880,950 + $376,040

$1,256,990

Tax history for 280 Cognewaugh Rd

Year

Property tax

Land + Additions

Assessment*

2023

$14,425 (+1.0%)

$616,000 + $650,440

$1,266,440

2022

$14,285 (−4.4%)

$616,000 + $650,440

$1,266,440

2021

$14,936

$560,000 + $728,700

$1,288,700

2020

$14,936 (+0.2%)

$560,000 + $728,700

$1,288,700

2019

$14,902 (+2.7%)

$560,000 + $715,820

$1,275,820

2018

$14,506

$560,000 + $715,820

$1,275,820

2017

$14,506 (+1.5%)

$560,000 + $715,820

$1,275,820

2016

$14,289 (+3.6%)

$560,000 + $715,820

$1,275,820

2014

$13,789

$880,950 + $376,040

$1,256,990

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Property details

Interior

Basement Information
Basement Sq. Ft: 1,995
Basement Type: Partial

Bathroom Information
# of Full Baths: 4
# of 1/2 Baths: 1

Heating & Cooling
Heating Type: Forced Hot Water

Room Information
# of Rooms: 9

Exterior

Exterior Information
Physical Condition: Very Good
Building Style Type: Cape Cod
Construction Type: Frame
Exterior Wall: Wood Siding/Shingle
Roof Shape Type: Gable

Pool Information
Pool Type: Hot Tub/Jacuzzi
Has Pool

Property Information
Living Sq. Ft: 4,018
# of Stories: 2

Parking & Garage Information
Parking Type: Attached Garage
Garage / Carport Type: Attached

Lot Information
# of Buildings: 1
Land Sq. Ft: 87,120
Municipality Name: GREENWICH
Acres: 2
Zoning Code: RA-2
State Use Description: 1-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2023

Public facts

Beds: 4
Baths: 4.5
Sq. Ft.: 4,018
Stories: 2.0
Lot Size: 2 acres
Style: Single Family Residential
Year Built: 1981
Year Renovated: —
County: Fairfield County
APN: 1855735

Home facts updated by county records on Jul 12, 2023

Around this home

Schools

K - 12
Preschool & daycare

North Street School

Public PreK-5 • Assigned • 1.8mi

10/10

Central Middle School

Public 6-8 • Assigned • 1.8mi

8/10

Greenwich High School

Public 9-12 • Assigned • 2.4mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

5/10 Heat Factor

7 days above 99° expected this year, 15 days in 30 years

6/10 Wind Factor

64% chance of strong winds in next 30 years

4/10 Air Factor

5 unhealthy days expected this year, 7 days in 30 years

Provided by First Street

Historical weather

Cos Cob, CT • 06807

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 8.7 hours in June and 4.3 hours in December, placing it below the U.S. average for solar exposure.

8.7 hrs

4.3 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$3.08M – $3.72M

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New listings for sale in 06807

$3,750,000

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3D WALKTHROUGH

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98 Valley Rd #10, Cos Cob, CT 06807

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Home values near 280 Cognewaugh Rd

Data from public records.

Address	Redfin Estimate
288 Cognewaugh Road, Cos Cob, CT 4 Beds \| 2.5 Baths \| 3255 Sq. Ft.	$2,302,114
297 Cognewaugh Road, Cos Cob, CT 4 Beds \| 3 Baths \| 3284 Sq. Ft.	$2,745,004
300 Cognewaugh Road, Cos Cob, CT 5 Beds \| 4 Baths \| 3954 Sq. Ft.	$3,282,959
268 Cognewaugh Road, Cos Cob, CT 3 Beds \| 2.5 Baths \| 2010 Sq. Ft.	$1,403,236
261 Cognewaugh Road, Cos Cob, CT 5 Beds \| 7 Baths \| 6941 Sq. Ft.	$4,514,513
1 Mimosa Drive, Cos Cob, CT 4 Beds \| 3.5 Baths \| 2929 Sq. Ft.	$2,582,117
14 Daffodil Lane, Cos Cob, CT 4 Beds \| 3 Baths \| 3538 Sq. Ft.	$2,182,951

Address	Redfin Estimate
320 Cognewaugh Road, Cos Cob, CT 4 Beds \| 4 Baths \| 3787 Sq. Ft.	$2,455,313
307 Cognewaugh Road, Cos Cob, CT 3 Beds \| 3 Baths \| 2310 Sq. Ft.	$2,385,995
277 Cognewaugh Road, Cos Cob, CT 4 Beds \| 2.5 Baths \| 3006 Sq. Ft.	$2,637,640
287 Cognewaugh Road, Cos Cob, CT 3 Beds \| 3 Baths \| 4555 Sq. Ft.	$2,479,902
240 Cognewaugh Road, Cos Cob, CT 4 Beds \| 2.5 Baths \| 3130 Sq. Ft.	$2,605,133
10 Daffodil Lane, Cos Cob, CT 4 Beds \| 3.5 Baths \| 3368 Sq. Ft.	$2,616,942
16 Daffodil Lane, Cos Cob, CT 5 Beds \| 5 Baths \| 4179 Sq. Ft.	$2,143,033

Address	Redfin Estimate
303 Cognewaugh Road, Cos Cob, CT 5 Beds \| 5.5 Baths \| 5589 Sq. Ft.	$3,509,450
269 Cognewaugh Road, Cos Cob, CT 5 Beds \| 4.5 Baths \| 3672 Sq. Ft.	$2,923,785
311 Cognewaugh Road, Cos Cob, CT 6 Beds \| 5 Baths \| 5040 Sq. Ft.	$3,089,680
286 Cognewaugh Road, Cos Cob, CT 4 Beds \| 3.5 Baths \| 4981 Sq. Ft.	$4,159,132
5 Mimosa Drive, Cos Cob, CT 4 Beds \| 2.5 Baths \| 2453 Sq. Ft.	$2,742,696
6 Daffodil Lane, Cos Cob, CT 4 Beds \| 3.5 Baths \| 3701 Sq. Ft.	$2,557,702
130 Old Stone Bridge Road, Cos Cob, CT 6 Beds \| 4.5 Baths \| 4455 Sq. Ft.	$2,871,914

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